miter



(No Model.)

S. S. COLT.

GOM'BINED BEVEL, MITER, AND TRY SQUARE. No. 330,378. Patented Nov. 17,1885.

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SAMUEL S. COLT, OF ORANGE, NEW JERSEY.

COMBINED BEVEL, MITER, AND TRY-=SQUARE.

.SPECIPIO'ATION forming part of Letters Patent No. 330,378, datedNovember 17,1885.

Application filed August 15, 1885. Serial No. 174,466. (No model.)

To all whom, it may concern.-

Be it known that I, SAMUEL S. COLT, a citizen of the United States,residing at Orange, in the county of Essex and State of New J ersey,have invented a new and useful Improvement in a Combined Bevel, Miter,and Try- Square, of which the following is a full, clear, and exactdescription.

The object of my improvementis to provide a simple, useful, andeffective instrument for artisans and others, which may be used eitheras a bevel and miter or try-square.

My improvements consist of the arrangement of the scales; the mode ofindicating the position of the blades with their respective scales, thedevice for clamping and pivoting the blades, and the arrangement of themiterblade, when not in use for bisecting angles,as a try-square.

Figure 1 represents a plan view in perspective of an instrument with myimprovements. Figs. 2, 3, 4, 5, 6, 7, 8, 9, 10, and 11 represent detailsof construction.

Similar letters refer to similar parts throughout the several views.

In Fig. 1, A and A represent the body or handle, andis constructed intwoseparate parts, as represented in Figs. 2 and 3, Fig. 2 being the Viewon edge of piece A, showing the scale which represents the movement ofthe slotted blade B, and is laid out in spaces representing degrees,marked to correspond, and graduated to one hundred and eighty degrees.In Fig. 3, A is likewise a View on edge, (rear front,) showing the scalewhich represents the movement of the miter-blade O, and is laid out inspaces representing degrees, marked to correspond, and graduated toninety degrees. The slotted blade B has within the slot a guide, 0,rectangular in form, as shown in Fig. 5, and moves forward or backwardtherein. Extending from each side are two studs, a and b. The stud aisturned perfectly true, and is fitted to the flanged sleeve, Fig. 4,which is shown in position on piece A, Fig. 3, in dotted lines.This'forms the pivot and bearing for blade B. The end of this stud isriveted at the flange, and fills the countersink. The stud b is alsoturned true, and has a thread formed thereon, and receives a thumb-nut,Fig. 7, which forms the clamping device. 0 is a line runninglongitudinally through the center of the blade B and the guide a, andforms an index to indicate the movement of the blade B with its scale.The miter-blade G rotates on a fixed pivot, which is formed of a plainstud, Fig. 11. One end has a thread formed on it, and

is screwed in the metal piece, Fig. 9, and the end riveted to fill thecountersink. The opposite end has also a thread formed on and receives athumb-nut, Fig. 7, which forms the clamping device for blade 0. A line,d, marked through the center of blade 0, running longitudinallytherewith, forms an index to indicate the movement of the blade with itsscale.

Figs. 6 and 8 represent two washers, the former being placed on the studof blade B and on one side of that blade, and the latter on the stud ofblade 0 and on the other side of that blade, so that both blades mayfold within the body or handle.

Fig. 9 is a metal piece, which is fitted to back of body-piece A, asshown, and has two holes drilled and tapped to receive two screws, oneof which is shown in Fig. 10. The blade 0 has two slotted openings, (notshown,) in which these screws fit, the obj ect being to hold the bladestationary when at right angles with the body or handle A and A, for useas a try-square when not required for bisecting angles.

In Fig. l body-pieces A, e, and e are two metal sleeves or bushings,which the studs forming the clamping device pass through, and are toprotect the piece A,when made of wood,from wear.

The scales are shown separate on the bodypieces A and A, and I do notconfine myself in the operation of the instrument strictly thereto, asthe two scales can be laid out on one piece.

Having fully described my invention, what I claim as new, and desire tosecure by Letters Patent, is-

A bevel composed of the body or handle A and A, slotted blade B,miter-blade O, in dexes c and d of blades B and O, the scales formed onedge of body or handle A and A, too

the guide 0, with pivot and clamping device for securing blade B, theclamping device for securing blade 0, and the device for holding blade Ostationary for use-as a try-square, all substantially as set forth.

Witnesses: SAMUEL S. COLT.

J NO. H. IMMEN, THOMAS CANNODY.

